Machine



Oct. 22, 1929. B. B. GoLDsMlTH VARNISH DRYING MACHINE 5 Sheets-Sheet l Filed Aug. 12, 1927 @Momma/WM@ Oct. 22, 1929. B, B GOLDSMlTH v 1,732,332

VARNISH DRYING MACHINE Filed Aug. l2. 1927 5 Sheets-Sheet 2 Oct. 22, 1929.

B. B. GOLDSMITH VARNISH VDRYINGr MACHINE Filed Aug. 12, 1927 5 Sheets-Sheet 5 Oct, 22,- 1929. B. B. GoLDsMlTH 1,732,332

VARNI SH DRYING MACHINE Filed Aug 12, 1927 l Y 5 sheets-sheet 4 @MM wmww@ Oct. 22, 1929. B, B, GQLDSMlTH l 1,732,332

VARNISH DRYING MACHINE Filed Aug. 12 1927 5 Sheets-Sheet 5 more stares BYRON B. GLDSMITH, OF NEW YORK, El'. Y

SAD BYRON B. GOLDSMITH, EECEASED, .ASSGt-"GR TG AMERCAN LEAD GEGRGE A.

SEEEGELBERGT, EXECUTOR GF COMPANY, OF NEX/V YORK, I\l`, Y., A CORPORATION 0F NEVJ YORK VAR-NISH-DRYIIG MACHINE Application filed August 12, 1927.

Vlfhis invention relates to method of and apparatus tor drying,` elongated articles, such as rods, which have been coated with the material to be subsequently dried, such for example as by varnishing, painting, etc. More part-icularly the invention contcmplates a novel manner oil supporting` and conveying such articles. The invention iinds v-ery useful application in drying articles such tor example as pencils which have been varnished or painted; and is particularly applicable to such use in connection with supporting and conveying' the pencils to be dried in a novel, unique and elllcient Since this application ot' the invention has been proven to be eminently suited tor this specitic use and has been tested in practice, the present preferred embodiment ot the invention will be described in detail in connection with such specilic use, but it is to be understood that the scope ot the invention is not to be limited to this speciiic use, but is to be commensurate with the invention as claimed in the appended claims.

iencils when newly varnished or painted must be lrept separated in order to prevent sticking together until the varnish or paint has been suiliciently dried; and similarly, articles ot this general character should prefd erably be supported with as small supporting Contact area as possible to prevent mari-ing the coating which is to be dried. My invention contemplates particularly the method ot supporting` and conveying such articles while drying the same in a manner to iultill these requirements; and supplemental thereto, l have found that a'tter the firstdrying has been effected, when the articles individually supported have been progressed to a certain. degree, short ot' complete hardening, the articles will not stick together when supported in group contact and therefore can be successfully and com pletely hardened in groups wherein a Serial No. 212,451.

plurality ot articles are carried in the same receptacle.

The last mentioned phase of the invention serves to reduce the size of the machine considerably, and may be found desirable in connection with the drying' oit certain types of articles.

lily improved apparatus may be fed by hand but is preferably used in combination with an automatic mechanical varnishing or coating` device which 'te-eds the newly coated rods directly to my apparatus.

l have herein illustrated my invention in a preferred form by way of example in the accompanying drawings, wherein Fifi'. l is a more or less diagramn'iatic side elevation of the machine. Figure 2 is a plan view, partly in section, o1 the feeding in end ot the machine, Figure 3 shows one et' the individual containers in side elevation, Figure t shows the discharge end ot the machine in side elevation, Figure 5 is a plan view ci a part of the machine showing, the trans terring means, Figure 6 is a side elevational view of a part oi the same, and Figures 7 and 8 are views in side elevation et' the inter` inittent actuator in two fiitl'erent positions.

My improved apparatus comprises a primary individual conveyor, a secondary group conveyor and means for transfer- 'ring the rods from the former to the latter.

The secondary conveyor must, et course,

stood that the length et cach conveyor will depend upon the judgment of the operator. In other words the number of pulleys and bights et the conveying chains is not neces sarily that shown in the drawing.

At C in Figure 2 is indicated in a general Way the feeding elements of a rod varnishing machine of any well known character, whereby rods ot' delinite length are pushed into the receiving tube 10 oi" a varnisher 11, and are caused to tall duly coated with wet varnish upon the individual holders or cradles 12 suspended pivotally on conveying chains 13 (Fig. 5) by which they are carried past the point ot delivery oi the pencils from the varnisher 11.

The preferred shap-e of each cradle 12 is shown in Figures 2 and 3, in the latter et which a single rod 11i is shown. As is clearly shown in Figs. 1, 2 and 3, each individual cradle holder 12 is concave in both transverse cross section and longitudinal sectional elevation. The transverse cross sect-ion in the present embodiment being of lf-formation, and the longitudinal sectional elevation being' in the :tor-in of a very wide iiat bottoni V. This serves the dual purpose ol' aiding in properly centering the rodsI 14T both longitudinally and laterally and i` providing substantially a two point contactl support for the rods, so that a ininuinuin oit varnished area is in contact with the cradle; and also provides an eflicient means ot draining any excess varnish away from the supporting ends of the cradle, out oit contact with the rod ends. Furthermore, the sides of the cradles 12 are cut away as at 12", both in-v wardly and downwardly; this serving the dual purpose of permitting better circulation or the drying medium and preventing any excess varnish from ever rising to the supporting ends of the cradle. This shows that the freshly varnished rods are supported at their ends only, to give the air access to all sides. The ends which are in siibstantial point contact with the cradle, have plenty ot time to finally dry in the group containers of the secnodary conveyor.

The pivotal attachment oi" the cradles 12 to the chains 13 is ell'ected by means of the ends or ears 12a and 12b (Figs. 3 and 5) which are bent into a plane iiorinal to the pivotal axis, and are provided with bearing holes in which are journaled the pivotal sup-- porting trunnions i3 cr 1 d by the chains 13. The ear 12b is bentdownwardly to permit the positive centering` ot' the rods in the cradles through the medium o1 the member 15 (Fig. 2) to be more particularly des ribed following; and the ears 12n are bent upwardly to prevent the rods from being projected over the cradle end, as by being too far displaced by the member 15. The pivotal. support oi the cradles 12 is so balanced that they will normally assume the position indicated in Figs. 1, 2 and 3, under gravitational force.

rllhe cradles 12 progress continuously from below upward in Figure 2, and the rods are projected rapidly through the Varnisher l1 into one cradle alter the other. ln order to insure strict alignment oil' the rods in the cradles, l prefer to employ aligning means, such as the wiieel 15 which turns continually in a horizontal glane in the position shown in Figures 1 and 2, being driven by the belt 1G Jfrom the pulley 1?' w iich turns with the conveyor chains 13.

he cradles 12 are carried over the pulleys 18 along the course indicated by the interrupted lines 13 in Figure 1. Any convenient number of pulleys may be employed, and the particular direction and course ot travel oit the cradles as they are conveyed through the drying area is not an essential or the invention. The length of travel thus provided should, however, be so calculated with resicct to the speed oit movement and other circunistances that, when a given varnished rod reaches the transfer point and is delivered to the secondary conveyor, it will be sufficiently dried and hardened so that it will not stick to others.

The secondary or group conveyor comprises a nun'iber or" carriers 19, pivotally supported in a well lrnown manner upon conveyor chains 20 which are carried over the pulleys 21 to the iinal delivery point for the dried pencils at D in Figure 1. 20 and containers 19 are given an intermittent movement forward in the direction ot the arrows in Figure 1 by any appropriate automatic means. @ne preferred construction 'or this purpose is shown in ll'igures 1, 7 and 8. Y

il connecting rod 22 has one end pivotally attached near the periphery of a suitable wheel or equivalent member, mounted on the main driving shaft 24 or in any convenient driven part et the device.

The opposite end of this 'coniiecting rod is The chains pivotally attached to a lever 25 suspended loosely trom the shaft 26 to which is fixed This shaft 2G also carries three toothed discs 27, 2S, 29, ot Ysuccessively er diameter. @it these only the smallest one 27, is fixed to the shaft 2G, while 28 and 29 are loose thereon.

ie leit hand end oit the rod 22 (as seen in '7 and 8) carries a driving pawl 30, broad'enough to span the laces oit all three discs 2'?, 28 and 29, and is pressed against them by the spring 81. rlhe number of teeth possessed by these discswill depend upon the time intended to elapse between successiveflorward movements oit the secondary conveyor, which time interval will determine the number ot rods deposited in each holder 19 in the manner hereinafter described.

r'tssuming` each disc to have four teeth as shown, and assuming the parts to be in the position shown in liigure 8, it will be seen that, as the disc 23 turns in the direction of the arrow, the rod 22 will cause the pawl 8O to more to the right. Since this pawl is in engagement with the registering teeth of all three discs, 2T, 28 and Q9. it will act through the innermost disc 2T to revolve the shaft Q6 and thereby drive the chains 2O which iinpel the secondary or group conveyor one step forwar l. Vibis oi'ieration takes place during the lirst half turn of the disc 23.

luring the second half turn of said disc, the pawl 90 nieves to the left in Figure 8 and engages the next shallow tooth on the outermost disc 29, which is alone revolved during` the next revolution of the disc 23. Un the third subsequent operation of the pawl 30,

it enffages simultaneously the second and third iscs QS and Q9, and there; t

two discs move together until the position shown in Figure 8 is again reached, when the secondary conveyor moves forward one step more, and the operation just describen is repcated.

his means for producing step by stop motion is not of itself new and needs no further description here. My invention covers the use in this connection of any appropriate automatic means for producing intermittent motion of the secondary conveyor.

Between occurrences of forward movement of the secondi :y conveyor, there always stands a holder 19 opposite the rod-transferring mechanism, the position of which. is indicated E in F 1. This mechanism is preferably constructed and operated as follows:

-Referring to Figures l, and 6, the shaft upon which the trai iferring means is mounted shown at 32. rllhis shaft is driven, clockwise in Figure 6 as shown by the arrow, by means of a gear 33, driven by a pinion shown by its pitch line 3ft in (5, and turning with one of the chain-carrying eels 1S that cari-v the chains supporting V1ividual Icar rs rlhe shaft 32 carries a number of radially disposed plates 35, fixed thereto, as well as a corresponding number of revoluble shafts cach carrying a grasping linger 37 to which is rigidly fixed a lever 3S provided with a roller 89 adapted to roll on the surface of a cam Ll0, to which it is constantly held by a spring Ll1.

ris often as the containers 12 are carried forward by the chains 13, past the transforring means, the plates 3:; move successively into position imn'iediately behind the suo cessive rods 1d. At the saine time the iingcrs 9T, which have been held .an/ay from 'their corresponding plates 35 by the stationary cam 10, are now permitted tomove against their respective plates 35, one at a time, as the cori spending rollers 39 drop into the low portion of tie cani or caros 40. rilhis last movement is so tinied as to bring the finger 87 against the Yface of its corresponding radial plate 35 just as the latter reaches a rod 1li in one of the holders 12. Preferably the fingei 37 are provided with a recess, as shown, to accommodate the rods lil.

By this means each rod 14.- is successively lifted from the holder 12 carrying it and is carried forward to a position substantiallg,7 over one of the bucket 19 waiting 1) where the roller 39 agen ri des on the high part of the earn l-O.

This causes die finger 37 to leave the plate 35,

a t e bucLet 19.

rlhe mechanism actually shown in the drawings has only six plates 35 and six correspending` fingers 37. is preferably con- ,tructed however, twice this number is used; he other six fingers being` governed by the ram 12. These are omitted for greater clearn and are operated exactly like those shown.

From what has been described thus far, it will be seen that the rods 14, which are delivered with wet ,varnished surfaces, one by one to the individual holders 12, are carried :forward by these carriers to the transfer point E, waere thc transferring device just described removes them one by one to the buckets 19 on the intermittently moving traveler. As each bucket 19 becomes suiliciently filled in this manner, the intermittent transmission shown in Figures 7 and 8 causes it to move forward, and brings another bucket 19 into the receiving position shown in Figure 6.

By the time the rods are delivered to the buckets 19, they are dried sufiiciently to prevent their sticking together, and thereafter', as they move forward in clusters in the buckets 19, the drying and hardening of the rods is completed.

The buckets 19 move forward one by one to the point of final discharge which is appreached in a downward slanting direction, as shown in Figure 4l by the arrow on the chain 90.

I Each bucket 19 is provided on one side with a projecting cam contact d3, and, as each bucket reaches the point of discharge, this cam contact comes in Contact with the under surface of a fixed cani track lla, so placed and shaped to press the cani contact i3 in a manner to revolve the bucket on its pivotal support as shown at in Fig. e. This dumps the contents onto the receiving chute lili, and they are received thence in any convenient receptacle, or otherwise disposed of.

My device is capable of embodiment in many different modifications without departing l'roin the scope of my invention, and I do not limit myself to the details herein shown and described.

Vhat I claim isl. ln apparatus o'l the character described, a plurality of individual container conveyor elements supported by conveyor means, each container element having down- Wardly convergently longitudinally sloping bottoni walls and upwardly outwardly divergent side walls.

2. ln apparatus vof the character described, a plurality of individual container conveyor elen'ients supported by conveyor means, each container element having downwardly convergently longitudinally slop ing bottom walls and upwardly outwardly transversely divergent side walls, said side walls being cut away on opposite sides for a substantial distance longitudinally of the median transverse zone.

8. ln apparatus of the character described,

. a plurality of individual container conveyor elements pivotally supported by flexible con veyor means, each container element being concave in longitudinal cross section and being provided with an upwardly extending limit stop adjacent one end to limit the axial movement ot an article in said container.

l. ln apparatus ot the character described, a plurality ot individual container conveyor elements for individually supporting a plurality of elongated articles longitudinally thereof, said elements being so formed and constructed that said elongated articleswill be supported therein at opposite ends of said article and with a minimum contact area of support, common means for supporting and moving said elements, and means past which said elements are movable by said container means ior longitudinally positioning said rods in desired. position in said elements.

5. In apparatus of the character described, al plurality of individual container conveyor elements for individually supporting a plurality of elongated articles longitudinally thereof, said elements being` so formed and constructed that said elongated articles will be supported therein at opposite ends of said article and with a minimum contact area'of support, common means for supporting and moving said elements, means past which said elements are movable by said container means i'or longitudinally positioning said rods in desired position in said elements, and means carried respectively by said individual elements for limiting the longitudinal movement therein ef said articles carried thereby.

G. In combination with mechanical means for deliveringr newly coated elongated articles, a plurality of individual container con* veyor elements, means 'l'or supporting and conifeyY said container elements individually in successive axial alignment with said 

